Breathing apparatus



FIG. 1 is a side perspective view of a breathing apparatus; and,

FIG. 2 is a rear elevation view of the breathing apparatus of FIG. 1.

The elements illustrated in dashed lines in the accompanying drawings are considered environmental and do not form a part of the claimed design. The broken line showing portions of the article is included for the purpose of illustrating subject matter excluded from the claim with the line itself and the unshaded surfaces within forming no part of the claimed design. The broken line showing of linear portions of the article is included for the purpose of illustrating surface breaks with the lines themselves forming no part of the claimed design. 

CLAIM The ornamental design for a breathing apparatus, as shown and described. 